https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91970
--- Comment #13 from joseph at codesourcery dot com <joseph at codesourcery dot
com> ---
bpabi-lib.h is the existing mechanism for renaming libgcc2.c functions and
declaring them with __attribute__((pcs("aapcs"))). (But when causing more
such functions to be used, or such functions to be used when they weren't
before, we'd need to make sure all the declarations therein are being
applied properly in the new cases to give the functions the desired ABI.)
